The SHARP EL-331F is a compact and efficient 10-digit office calculator designed to simplify your everyday calculations. It features cost, sell, and margin functions, making it easy to manage pricing and profit analysis. The 3-digit punctuation ensures clear, easy-to-read numbers, while the add and subtract tax keys streamline tax calculations. Dual-powered by solar and battery, the EL-331F is a reliable choice for consistent performance in any office environment.